Sheet-delivery device



March 13, 1928. 1,662,647

w. H. SMITH SH EET DELIVERY DEVICE Filed June 15-. 1926 s Sheets-Sheet 1 INVVENTOR LJaQIw Q $-K March 13, 1928.

W. H. SMITH SHEET DELIVERYVDEVICE s Sheets- Sheet 2 Filed June 15. 1928 #:QQVENTORI Oma March 13, 19.28.

W. H. SMITH SHEET DELIVERY DEVICE 3 Sheets-Sheet 3 4 ll 166k? .1 Ev llllllll. & z

INVENTOR Patented Mar. 13, 1928.

NIT an STATES PATENT *(')F4FZI?.CLE.

WALTER a. 1m or rIrTsnUR'oH, IENNSYLVAJTI'A, ASSIGNOR matinee-saw- TRIMMERCOMPANI:OFPITTSBURGH, PENNSYLVANIA, A ooneonnrr'oiv on PEN'LL SYLVANLA.

*smmmmvmy :oEvIen.

i-lppiic'a'tion med an: 15,

My invention pertains" to sheet Ldelivery devices, and has as its principal object the provision of such a 'device theipartsi ofwhich will be capable ofrbeing movedLouti-of oper- 5 ative position with respect to the s'rnachine in connection"Withvvhich it is being rused, so as to-giveaccessibility' to othenpartsnof such machineywhich willb'e' safe in' use and of a simple and economical I construction.

By way of example, a sheet f'delivenydevice constructed in accordance with my invention'is'd-eseribed inthe following specification, and-shown in accompanying drawings, inwhich: I

Fig. 1 is a plan of'the device, showing the delivery arm and 't'able in ltheir operative relation with the remainder of the machine, and showing the deliveryrarm in a position intermediate that in which it re ceives a sheet and that in which it drops a 'sheetonto the delivery table;

Fi 2 is a view similar toFig. 1, but showmgthe delivery: arm disconnected from its driving association 'and dropped forward to a position where it is out fof'the opera- "tors Way, and showing the delivery table swung away for a like purpose.

Fig 3 is a side elevation of the device, looking from the right hand :side of Fig. 1, part of the frame work *of the machine being *broken away; and a Fig. 4 is a section on the "line 4- 4 of Fig. 3 looking in the direction :of :the arrows.

As my invention relates solely to a construction of the parts in :such a manner as to permit them to be removed from out of the way of the operator when desired, and to provide for safety when advantage is taken of these removal facilities, :itwill-not 'be necessary to describe at length the various mechanicaldetails by which the sheet delivery device herein referred "to isactuated and performs its work. In general :plan of operation, the-deliver device has much similarity to that des'cri ed in Patent No. 1,145,405, granted Julyfi, 1915 ion'the application of Edward Cheshire.

Referring now to the drawing, indicates the platen of a platen .pninting press, such ten being shown :"lnl'ts open sheet; ewiring position Secured in the front at "1926. SrlaLNo. 116,138.

"this..press, i.- e. to the part remote from the type' bed,therema-y be a complete mocha- In -ism for automatically separating sheets from a pile, feeding such separated :sheets tothe platen 10, delivering the printed sheets from the iplaten, :etc. A large epart'of this mechanism'is of no importancehere, and thereis only :show n, therefore, 21):P01'l'il011 of *theframe IIOfsuch mechanism, the table 12: upon which "the sheets aredelivered, the

arm 13'hy whichthe sheets are delivered from the platen' lOto' the table 12, the mounti'ngconstruction of such table and army'and "theinterlocking devices-between the latter.

The delivery table 1-2 is provided,- along its l'f'ront edge, with an "upwardly extending plate l i 'against whichthe edges of the'de- 'li vered'shect's stack-themselves as they are dropped one 'by one upon thetabl'e. The

' table is further "provided, "at "its right hand side, with "a downwardly extending "socket v 15 which receives "a pin .16 extending upwardly frame-standard 17 formed'upon the frame '11. The socket 15 rests upon the standard 17 and the table 12 is thus sup- :ported'in'such a manner that it can be-swung about'theipin 16'as a pivot.

Mounted in suitable bearings "in the frame 11 is a shaft 18, upon which is loosely mounted thedelivery arm 13, which latter carries delivery grippers 19 which are closed upon the printed sheet on the platen and subsequently opened to drop such sheet on of the arm with respect to l the sleeve.

Mounted loosely on theshaft 18 adjacent the sleeve 20 is a quadrant ,gear 22 vvh1eh is ac mated by quadrant 23 which rea ies; a and fr c rocking motion f'reiti 'isiiitable ram. It: will be seen that if the quadrant gear 22 is connected with the sleeve 20 the to and fro motion of the quadrant 28 will effect a to and fro rocking movement of the delivery arm 13.

The sleeve 20 is provided with an outwardly extending boss 21 formed with a slot in which is pivoted, at 25, a key member 26. The outer end of this key member is adapted to enter the corresponding slot of a boss 27 extending outward from the hub of the quadrant gear 22. The key member is provided with a projection 28 adapted to rest upon the bottom of the hub of the boss 27 and thereby limitthe downward movement of the key member. It is also provided with an outwardly extending ear 29 adapted to be engaged by a spring-pressed latch 30 carried by the boss 27, which latch serves to prevent the key member from accidently working outward from the slot of the boss 27. \Vhen the key member 26 is engaged in the slot of the boss 27 as shown in Figs. 1. 3 and 4, the sleeve 20 is rigidly secured to the quadrant gear 22; so that the delivery arm 13 will participate in the to and fro rocking movements of the quadrant 23. Upon manual release of the latch 30, however, the key member may be swung outward about its pivot until it is disengaged from the slot in the hub 27. When this has been done. the delivery arm and sleeve 20 are freed from their driving connection, and the delivery arm may be dropped forward until the key member 26 rests upon an abutment 31 provided for the purpose upon the frame 11, as shown in Fig. 2. The other parts of the machine may continue to run, the quadrant gear 22 having, of course, no effect upon the delivery arm. In order to provide against the key member 26 accidently locking with the quadrant gear 22 otherwise than when engaged in its proper slot, such quadrant is provided with a guard flange 32. which prevents any inward movement of the key member except at the correct position.

Mounted in the boss 2d of the sleeve 20, immediately beneath the slot in which the key member 26 is pivoted, is a pin 33 pressed upward by a spring 33, the head of which is adapted to be engaged by a lug 31- on the key member 26 in such a manner that when the key member is swung downward to engage in the slot of the quadrant gear 22 the lug 3% will force the pin 33 downward against the action of its spring. The end of the pin 33 is cone shaped and engages the conical inner end of a second spring pressed pin 35 disposed axially in the shaft 18. The outer end of the pin 35 is also conical and engages the conical end of a third spring-pressed pin 36 mounted in a boss 37 which projects inwardly from the standard 17. The socket 15 of the delivery table 12 is formed with a hole 38, so placed as to register with the pin 36, when the delivery table 12 in its operative position; so that when the table is in such operative position the pin 36 can enter the hole 38. In order to facilitate the swinging back of the delivery table to a position in which the hole 38 will be in precise register with the pin 36, the standard 17 is provided with a forwardly extending boss 3.) in which is mounted an adjustable screw 40 against which the edge of the table 12 may be made to abut when the table is swung into operative position.

It will be observed that the delivery table may be swung out of the way when desired and also that the delivery arm may be loosened and allowed to drop out of the way when desired. Vere the delivery table to be swung to one side while the delivery arm was still operating, damage might result, due to a collision between the two. The same dangerous condition would obtain if the delivery arm, having been disconnected. were reconnected without assurance being had that the delivery table was first in its proper position. An accident of either kind is prevented bv my construction, since the pin 36 locks the delivery table against being swung about its pivot, and this pin can only be withdrawn by its Spring when the key member 26 has been swung upward about its pivot so as to disconnect the delivery arm from its driving mechanism. Likewise, the delivery arm having been disconnected, it can be reconnected only when the delivery table is in its proper position, since only in that case can the pin 36 enter the hole 38, enabling the pin 33 to be depressed so as to allow the key member 26 to enter the slot of the boss 27 oi the quadrant gear 22.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a sheet delivery device, a delivery table, means for mounting said delivery table to permit it to be swung into and out of operative position, a sheet-delivering member, mechanism for actuating said mem' ber, releasable connection means between said member and said mechanism, and an interlocking device for preventing swinging of said table except when said connection means is released.

2. In a sheet delivery device, a delivery table, means for mounting said delivery table to permit it to be swung into and out of operative position, a sheet-delivering member, mechanism for actuating said member, releasable connection means between said member and said mechanism, and an interlocking device for preventing reconnection of said releasable connection means when said table is out of operative position.

3. In a sheet delivery device, a delivery interlocking device for preventing swinging table, means for mounting said delivery of said table except when said connection table to permit it to be swung into and out means is released and reconnection of said 10 of operative position, a sheet-delivering releasable connection means when said table 5 member, mechanism for actuating said memis out of operative position.

ber, releasable connection means between said member and said mechanism, and an WALTER E. SMITH. 

